/*
REWRITTEN BY XINEF
*/

#include "ScriptMgr.h"
#include "ScriptedCreature.h"
#include "nexus.h"

enum Spells
{
	// Main
    SPELL_ICE_NOVA					= 47772,
    SPELL_FIREBOMB					= 47773,
    
	SPELL_GRAVITY_WELL				= 47756,
    SPELL_TELESTRA_BACK				= 47714,
	SPELL_BURNING_WINDS				= 46308,
	SPELL_START_SUMMON_CLONES		= 47710,

	SPELL_FIRE_MAGUS_SUMMON			= 47707,
	SPELL_FROST_MAGUS_SUMMON		= 47709,
	SPELL_ARCANE_MAGUS_SUMMON		= 47708,

	SPELL_FIRE_MAGUS_DEATH			= 47711,
	SPELL_ARCANE_MAGUS_DEATH		= 47713,

    SPELL_WEAR_CHRISTMAS_HAT        = 61400
};

enum Yells
{
	SAY_AGGRO						= 0,
	SAY_KILL						= 1,
	SAY_DEATH						= 2,
	SAY_MERGE						= 3,
	SAY_SPLIT						= 4
};

enum Misc
{
	NPC_FIRE_MAGUS					= 26928,
    NPC_FROST_MAGUS					= 26930,
    NPC_ARCANE_MAGUS				= 26929,

    ACHIEVEMENT_SPLIT_PERSONALITY	= 2150,

    GAME_EVENT_WINTER_VEIL          = 2,
};

enum Events
{
	EVENT_MAGUS_ICE_NOVA			= 1,
	EVENT_MAGUS_FIREBOMB			= 2,
	EVENT_MAGUS_GRAVITY_WELL		= 3,
	EVENT_MAGUS_HEALTH1				= 4,
	EVENT_MAGUS_HEALTH2				= 5,
	EVENT_MAGUS_FAIL_ACHIEVEMENT	= 6,
	EVENT_MAGUS_MERGED				= 7,
	EVENT_MAGUS_RELOCATE			= 8,
	EVENT_KILL_TALK					= 9
};

class boss_magus_telestra : public CreatureScript
{
	public:
		boss_magus_telestra() : CreatureScript("boss_magus_telestra") { }

		CreatureAI* GetAI(Creature* creature) const
		{
			return GetInstanceAI<boss_magus_telestraAI>(creature);
		}

		struct boss_magus_telestraAI : public BossAI
		{
			boss_magus_telestraAI(Creature* creature) : BossAI(creature, DATA_MAGUS_TELESTRA_EVENT)
			{
			}

			uint8 copiesDied;
			bool achievement;

			void Reset()
			{
				BossAI::Reset();
				copiesDied = 0;
				achievement = true;

				if (IsHeroic() && sGameEventMgr->IsActiveEvent(GAME_EVENT_WINTER_VEIL) && !me->HasAura(SPELL_WEAR_CHRISTMAS_HAT))
					me->AddAura(SPELL_WEAR_CHRISTMAS_HAT, me);
			}

			uint32 GetData(uint32 data) const
			{
				if (data == me->GetEntry())
					return achievement;
				return 0;
			}

			void EnterCombat(Unit* who)
			{
				BossAI::EnterCombat(who);
				Talk(SAY_AGGRO);

				events.ScheduleEvent(EVENT_MAGUS_ICE_NOVA, 10000);
				events.ScheduleEvent(EVENT_MAGUS_FIREBOMB, 0);
				events.ScheduleEvent(EVENT_MAGUS_GRAVITY_WELL, 20000);
				events.ScheduleEvent(EVENT_MAGUS_HEALTH1, 1000);
				if (IsHeroic())
					events.ScheduleEvent(EVENT_MAGUS_HEALTH2, 1000);
			}

			void AttackStart(Unit* who)
			{
				if (who && me->Attack(who, true))
					me->GetMotionMaster()->MoveChase(who, 20.0f);
			}

			void JustDied(Unit* killer)
			{
				BossAI::JustDied(killer);
				Talk(SAY_DEATH);
			}

			void KilledUnit(Unit*)
			{
				if (events.GetNextEventTime(EVENT_KILL_TALK) == 0)
				{
					Talk(SAY_KILL);
					events.ScheduleEvent(EVENT_KILL_TALK, 6000);
				}
			}

			void JustSummoned(Creature* summon)
			{
				summons.Summon(summon);
				summon->SetInCombatWithZone();
			}

			void SpellHit(Unit* caster, const SpellInfo* spellInfo)
			{
				if (spellInfo->Id >= SPELL_FIRE_MAGUS_DEATH && spellInfo->Id <= SPELL_ARCANE_MAGUS_DEATH && caster->ToCreature())
				{
					events.ScheduleEvent(EVENT_MAGUS_FAIL_ACHIEVEMENT, 5000);
					caster->ToCreature()->DespawnOrUnsummon(1000);

					if (++copiesDied >= 3)
					{
						copiesDied = 0;
						Talk(SAY_MERGE);
						events.CancelEvent(EVENT_MAGUS_FAIL_ACHIEVEMENT);
						events.ScheduleEvent(EVENT_MAGUS_MERGED, 5000);
						me->CastSpell(me, SPELL_BURNING_WINDS, true);
					}
				}
			}

			void UpdateAI(uint32 diff)
			{
				if (!UpdateVictim())
					return;

				events.Update(diff);
				if (me->HasUnitState(UNIT_STATE_CASTING))
					return;

				switch (events.ExecuteEvent())
				{
					case EVENT_MAGUS_HEALTH1:
						if (me->HealthBelowPct(51))
						{
							me->CastSpell(me, SPELL_START_SUMMON_CLONES, false);
							events.ScheduleEvent(EVENT_MAGUS_RELOCATE, 3500);
							break;
						}
						events.ScheduleEvent(EVENT_MAGUS_HEALTH1, 1000);
						break;
					case EVENT_MAGUS_HEALTH2:
						if (me->HealthBelowPct(11))
						{
							me->CastSpell(me, SPELL_START_SUMMON_CLONES, false);
							events.ScheduleEvent(EVENT_MAGUS_RELOCATE, 3500);
							break;
						}
						events.ScheduleEvent(EVENT_MAGUS_HEALTH2, 1000);
						break;
					case EVENT_MAGUS_FIREBOMB:
						if (Unit* target = SelectTarget(SELECT_TARGET_RANDOM, 0))
							me->CastSpell(target, SPELL_FIREBOMB, false);
						events.ScheduleEvent(EVENT_MAGUS_FIREBOMB, 3000);
						break;
					case EVENT_MAGUS_ICE_NOVA:
						me->CastSpell(me, SPELL_ICE_NOVA, false);
						events.ScheduleEvent(EVENT_MAGUS_ICE_NOVA, 15000);
						break;
					case EVENT_MAGUS_GRAVITY_WELL:
						me->CastSpell(me, SPELL_GRAVITY_WELL, false);
						events.ScheduleEvent(EVENT_MAGUS_GRAVITY_WELL, 15000);
						break;
					case EVENT_MAGUS_FAIL_ACHIEVEMENT:
						achievement = false;
						break;
					case EVENT_MAGUS_RELOCATE:
						me->NearTeleportTo(505.04f, 88.915f, -16.13f, 2.98f);
						break;
					case EVENT_MAGUS_MERGED:
						me->CastSpell(me, SPELL_TELESTRA_BACK, true);
						me->RemoveAllAuras();
						break;
				}

				DoMeleeAttackIfReady();
			}
		};
};

class spell_boss_magus_telestra_summon_telestra_clones : public SpellScriptLoader
{
    public:
        spell_boss_magus_telestra_summon_telestra_clones() : SpellScriptLoader("spell_boss_magus_telestra_summon_telestra_clones") { }

        class spell_boss_magus_telestra_summon_telestra_clones_AuraScript : public AuraScript
        {
            PrepareAuraScript(spell_boss_magus_telestra_summon_telestra_clones_AuraScript);

			bool Load()
			{
				return GetUnitOwner()->GetTypeId() == TYPEID_UNIT;
			}

            void HandleApply(AuraEffect const* aurEff, AuraEffectHandleModes /*mode*/)
            {
				GetUnitOwner()->ToCreature()->AI()->Talk(SAY_SPLIT);
				GetUnitOwner()->CastSpell(GetUnitOwner(), SPELL_FIRE_MAGUS_SUMMON, true);
				GetUnitOwner()->CastSpell(GetUnitOwner(), SPELL_FROST_MAGUS_SUMMON, true);
				GetUnitOwner()->CastSpell(GetUnitOwner(), SPELL_ARCANE_MAGUS_SUMMON, true);

				GetUnitOwner()->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NOT_SELECTABLE);
				GetUnitOwner()->SetControlled(true, UNIT_STATE_STUNNED);
				GetUnitOwner()->ToCreature()->LoadEquipment(0, true);

            }

            void HandleRemove(AuraEffect const* aurEff, AuraEffectHandleModes /*mode*/)
            {
				GetUnitOwner()->RemoveFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NOT_SELECTABLE);
				GetUnitOwner()->SetControlled(false, UNIT_STATE_STUNNED);
				GetUnitOwner()->ToCreature()->LoadEquipment(1, true);
            }

            void Register()
            {
                AfterEffectApply += AuraEffectApplyFn(spell_boss_magus_telestra_summon_telestra_clones_AuraScript::HandleApply, EFFECT_1, SPELL_AURA_TRANSFORM, AURA_EFFECT_HANDLE_REAL);
                AfterEffectRemove += AuraEffectRemoveFn(spell_boss_magus_telestra_summon_telestra_clones_AuraScript::HandleRemove, EFFECT_1, SPELL_AURA_TRANSFORM, AURA_EFFECT_HANDLE_REAL);
            }
        };

        AuraScript* GetAuraScript() const
        {
            return new spell_boss_magus_telestra_summon_telestra_clones_AuraScript();
        }
};

class spell_boss_magus_telestra_gravity_well : public SpellScriptLoader
{
    public:
        spell_boss_magus_telestra_gravity_well() : SpellScriptLoader("spell_boss_magus_telestra_gravity_well") { }

        class spell_boss_magus_telestra_gravity_well_SpellScript : public SpellScript
        {
            PrepareSpellScript(spell_boss_magus_telestra_gravity_well_SpellScript);

            void SelectTarget(std::list<WorldObject*>& targets)
            {
				targets.remove_if(Trinity::RandomCheck(50));
            }

            void HandlePull(SpellEffIndex effIndex)
            {
				PreventHitDefaultEffect(effIndex);
				Unit* target = GetHitUnit();
				if (!target)
					return;

				Position pos;
				if (target->GetDistance(GetCaster()) < 5.0f)
				{
					pos.Relocate(GetCaster()->GetPositionX(), GetCaster()->GetPositionY(), GetCaster()->GetPositionZ()+1.0f);
					float o = frand(0, 2*M_PI);
					target->MovePositionToFirstCollision(pos, 20.0f, frand(0, 2*M_PI));
					pos.m_positionZ += frand(5.0f, 15.0f);
				}
				else
					pos.Relocate(GetCaster()->GetPositionX(), GetCaster()->GetPositionY(), GetCaster()->GetPositionZ()+1.0f);

				float speedXY = float(GetSpellInfo()->Effects[effIndex].MiscValue) * 0.1f;
				float speedZ = target->GetDistance(pos) / speedXY * 0.5f * Movement::gravity;

				target->GetMotionMaster()->MoveJump(pos.GetPositionX(), pos.GetPositionY(), pos.GetPositionZ(), speedXY, speedZ);
            }

            void Register()
            {
                OnObjectAreaTargetSelect += SpellObjectAreaTargetSelectFn(spell_boss_magus_telestra_gravity_well_SpellScript::SelectTarget, EFFECT_0, TARGET_UNIT_SRC_AREA_ENEMY);
				OnEffectHitTarget += SpellEffectFn(spell_boss_magus_telestra_gravity_well_SpellScript::HandlePull, EFFECT_0, SPELL_EFFECT_PULL_TOWARDS_DEST);
            }
        };

        SpellScript* GetSpellScript() const
        {
            return new spell_boss_magus_telestra_gravity_well_SpellScript();
        }
};

class achievement_split_personality : public AchievementCriteriaScript
{
    public:
        achievement_split_personality() : AchievementCriteriaScript("achievement_split_personality")
        {
        }

        bool OnCheck(Player* /*player*/, Unit* target)
        {
            if (!target)
                return false;

			return target->GetAI()->GetData(target->GetEntry());
        }
};

void AddSC_boss_magus_telestra()
{
    new boss_magus_telestra();
	new spell_boss_magus_telestra_summon_telestra_clones();
	new spell_boss_magus_telestra_gravity_well();
	new achievement_split_personality();
}